mirror of
https://github.com/autc04/Retro68.git
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72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
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#include <stdlib.h>
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#include <unistd.h>
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void
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foo (int do_sleep)
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{
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int a[64], i, *p = a + 4, x = 0;
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asm volatile ("" : "+r" (p));
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for (i = 0; i < 64; i++)
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a[i] = i + 8;
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#pragma omp parallel private (i)
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{
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#pragma omp single nowait
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{
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for (i = 0; i < 8; i++)
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{
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#pragma omp task depend(out: a[i * 8 : 4])
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a[i * 8] += (i + 2) * 9;
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#pragma omp task depend(out: p[i * 8 : 2])
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p[i * 8] += (i + 3) * 10;
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#pragma omp task depend(out: x)
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x = 1;
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}
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for (i = 0; i < 8; i++)
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#pragma omp task depend(in: a[i * 8 : 4]) \
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depend(inout: a[i * 8 + 4 : 2]) \
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depend(in: a[0 : 4]) depend(in: x)
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{
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if (a[0] != 8 + 2 * 9 || x != 1)
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abort ();
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if (a[i * 8] != i * 8 + 8 + (i + 2) * 9)
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abort ();
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if (a[4 + i * 8] != 4 + i * 8 + 8 + (i + 3) * 10)
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abort ();
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p[i * 8] += a[i * 8];
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}
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for (i = 0; i < 8; i++)
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#pragma omp task depend(inout: a[i * 8 : 4]) \
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depend(in: p[i * 8 : 2]) \
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depend(in: p[0 : 2], x)
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{
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if (p[0] != 4 + 8 + 3 * 10 + 0 + 8 + 2 * 9 || x != 1)
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abort ();
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if (a[i * 8] != i * 8 + 8 + (i + 2) * 9)
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abort ();
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if (a[4 + i * 8] != (4 + i * 8 + 8 + (i + 3) * 10
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+ i * 8 + 8 + (i + 2) * 9))
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abort ();
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a[i * 8] += 2;
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}
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for (i = 0; i < 4; i++)
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#pragma omp task depend(in: a[i * 16 : 4], a[i * 16 + 8 : 4], x)
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{
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if (a[i * 16] != i * 16 + 8 + (2 * i + 2) * 9 + 2 || x != 1)
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abort ();
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if (p[i * 16 + 4] != i * 16 + 8 + 8 + (2 * i + 1 + 2) * 9 + 2)
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abort ();
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}
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}
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if (do_sleep)
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sleep (1);
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}
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}
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int
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main ()
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{
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foo (1);
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foo (0);
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return 0;
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}
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